We may earn a commission from links on this site.

Illustration. Photo coming soon

Air purifiers ยท Levoit

Levoit LAP-C311S-WUSR air purifier

Rated for rooms up to 271 sq ft. Puts out 175 cfm of smoke-free air per minute.

Where it ranks

#3 in Best air purifiers for rooms up to 300 sq ft115 models compared#1 in Best air purifiers for rooms up to 300 sq ft with app control29 models compared#1 in Best air purifiers for allergies in rooms up to 300 sq ft with app control29 models compared

Full specs

Cleaning power

Room size it is rated forThe largest room it cleans well in the certification test.271 sq ft
Clean air per minute: smokeHow much smoke-free air it puts out each minute. Higher cleans faster.175 cfm
Clean air per minute: dustThe same test for dust.175 cfm
Clean air per minute: pollenThe same test for pollen. Matters most for allergies.200 cfm

Running cost

Electricity per yearMeasured use when running all year. Multiply by your power price.132 kWh
Among the most efficient of 2025No

Filters

Main filterHEPA

Safety

Ozone it gives offOzone irritates lungs. 0 means none was measured.0 ppb

Features

Automatic modeAn air quality sensor adjusts the speed on its own.No
App controlYes

Source: this model on the ENERGY STAR list, checked 2026-11-09. Model number LAP-C311S-WUSR.